CN209419452U - A kind of rotor assembly and its motor of application - Google Patents
A kind of rotor assembly and its motor of application Download PDFInfo
- Publication number
- CN209419452U CN209419452U CN201920014110.1U CN201920014110U CN209419452U CN 209419452 U CN209419452 U CN 209419452U CN 201920014110 U CN201920014110 U CN 201920014110U CN 209419452 U CN209419452 U CN 209419452U
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- CN
- China
- Prior art keywords
- rotor assembly
- rotor core
- groove
- rotor
- conducting bar
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of rotor assembly and its motors of application, the rotor assembly includes rotor core, positioned at the conducting bar of two end ring of end ring and connection of rotor core both ends of the surface, the edge of rotor core is provided at circumferentially spaced several conducting bar mounting grooves, conducting bar is located inside conducting bar mounting groove, setting is used to install the axis hole of shaft among rotor core, rotor core is formed by least two groups the first punching group and at least one set of second punching group stacked spaced apart, first punching group includes the first yoke portion and several first teeth portion for stretching out outward from the first yoke portion, second punching group includes the second yoke portion and several second teeth portion for stretching out outward from the second yoke portion, partly or completely the second teeth portion is recessed heat dissipation groove from side to axis hole direction；The heat dissipation groove of second punching group is effectively increased the heat dissipation area of rotor, to reduce the temperature rise of motor, reduces the weight of rotor core, to reduce the design cost and transportation cost of motor.
Description
Technical field:
The utility model relates to a kind of rotor assembly and its motors of application.
Background technique:
Existing micro-machine, rotor assembly include rotor core, the end ring positioned at rotor core both ends of the surface and connection two
The conducting bar of end ring, the edge of rotor core are provided at circumferentially spaced several conducting bar mounting grooves, and conducting bar is located inside conducting bar mounting groove, turn
Setting is used to install the axis hole of shaft among sub- iron core.Existing micro-machine is frequently present of temperature raising, effect in the process of development
The problems such as rate is low, at high cost, to promote competitive power of product, it is necessary to accounting for the maximum rotor of motor space proportion, weight ratio
Component is improved.
Utility model content:
The purpose of the utility model is to provide a kind of rotor assembly and its motors of application, can solve motor temperature rise height, effect
The low problem of rate.
The purpose of this utility model is achieved by following technical proposals.
First purpose of the utility model is to provide a kind of rotor assembly, including rotor core, is located at rotor core two
The conducting bar of two end ring of end ring and connection of end face, the edge of rotor core is provided at circumferentially spaced several conducting bar mounting grooves, conducting bar position
Inside conducting bar mounting groove, setting is used to install the axis hole of shaft among rotor core, it is characterised in that: rotor core is by least
Two group of first punching group and at least one set of second punching group stacked spaced apart form, and the first punching group includes the first yoke portion and from first
Several first teeth portion that yoke portion is stretched out outward, if the second punching group includes the second yoke portion and stretches out outward from the second yoke portion
Dry second teeth portion, the first yoke portion and the second yoke portion are correspondingly arranged, and the first teeth portion is correspondingly arranged with the second teeth portion, and two neighboring first
The conducting bar mounting groove is formed between teeth portion, two neighboring second teeth portion, partly or completely the second teeth portion is from side to axis
Hole direction is recessed heat dissipation groove.
The depth H 1 of the slot bottom of heat dissipation groove described above is big compared with the depth H 2 of conducting bar mounting groove.
Above-mentioned at the rotor core both ends is the first punching group.
Above-mentioned the first punching of at least two groups group refers to 3 groups or 4 groups or 5 groups；At least one set of second punching group refers to 2 groups or 3
Group or 4 groups.
First yoke described above portion is equipped with several first ventilation holes, and the second yoke portion is equipped with several second ventilation holes, the
One ventilation hole is axially connected to the second ventilation hole, and the slot bottom of part heat dissipation groove is connected by extended segment groove and the second ventilation hole
It is logical.
First ventilation hole and the second ventilation hole described above it is circumferentially uniformly distributed and be located at the medial surface of axis hole and end ring it
Between.
The above-mentioned heat dissipation groove with the extended segment groove is in circumferencial direction uniform layout.
Extended segment groove described above is straight-line groove or arc groove.
It is above-mentioned to be provided with several fan blades on the rotor core wherein end ring of a side end face, several fan blades and end ring,
Conducting bar one cast aluminium forming.
Shaft described above is mounted in axis hole, and fan is equipped in shaft, and fan and fan blade are located at rotor core
Two sides.
Second purpose of the utility model is to provide a kind of motor, including rotor assembly, it is characterised in that: the rotor
Component is rotor assembly described above.
The utility model compared with prior art, has the effect that
1) rotor assembly of the utility model, rotor core is by least two groups the first punching group and at least one set second
Punching group stacked spaced apart forms, and the first punching group includes the first yoke portion and several first teeth for stretching out outward from the first yoke portion
Portion, the second punching group include the second yoke portion and several second teeth portion for stretching out outward from the second yoke portion, the first yoke portion and second
Yoke portion is correspondingly arranged, and the first teeth portion is correspondingly arranged with the second teeth portion, between two neighboring first teeth portion, two neighboring second teeth portion
The conducting bar mounting groove is formed, partly or completely the second teeth portion is recessed heat dissipation groove from side to axis hole direction；The
One punching group ensure that the outer diameter of rotor core is identical as existing rotor core, facilitates product to replace, ensure that rotor iron
The heat dissipation groove of the integral hardness of core, the second punching group is effectively increased the heat dissipation area of rotor, to reduce motor
Temperature rise, reduces the weight of rotor core, to reduce the design cost and transportation cost of motor；
2) depth H 1 of the slot bottom of the heat dissipation groove of the utility model is big compared with the depth H 2 of conducting bar mounting groove, further
Increase heat dissipation area；
3) the first punching of at least two groups group of the utility model refers to 3 groups or 4 groups or 5 groups；At least one set of second punching group
Refer to 2 groups or 3 groups or 4 groups；Further mitigate the weight of rotor core；
4) first yoke portion of the utility model be equipped with several first ventilation holes, the second yoke portion be equipped with several second
Ventilation hole, the first ventilation hole are axially connected to the second ventilation hole, and the slot bottom of part heat dissipation groove passes through extended segment groove and second
Ventilation hole connection；First ventilation hole and the second ventilation hole form axial heat dissipation channel, and the heat dissipation with the extended segment groove is recessed
Slot is connected to form radial heat dissipation channel with the second ventilation hole, further strengthens the heat dissipation effect of rotor core；
5) first ventilation hole and the second ventilation hole are circumferentially evenly distributed with and are located at the medial surface of axis hole and end ring
Between；Heat dissipation groove with the extended segment groove is in circumferencial direction uniform layout；Make heat flow quickly, uniformly；
6) several fan blades are provided on the rotor core wherein end ring of a side end face, several fan blades and end ring are led
Item one cast aluminium forming；Fan blade can reinforce the heat dissipation effect inside rotor assembly；
7) shaft is mounted in axis hole, and fan is equipped in shaft, and fan and fan blade are located at the two of rotor core
Side；Further enhance the heat dissipation effect of rotor；
8) motor reduces the self weight of rotor by the improvement of rotor assembly, and heat dissipation effect increases, to reduce
The loss of motor, under square one improves the efficiency of motor.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram for the rotor assembly that the utility model embodiment one provides；
Fig. 2 be embodiment one provide rotor assembly in, rotor core combined with end ring after structural schematic diagram；
Fig. 3 is the explosive view of Fig. 2；
Fig. 4 is the structural schematic diagram of the rotor core of embodiment one；
Fig. 5 is the explosive view of Fig. 4；
Fig. 6 is the top view of the first punching group of embodiment one；
Fig. 7 is the top view of the second punching group of embodiment one；
Fig. 8 is enlarged drawing at the A of Fig. 7；
Fig. 9 be embodiment two provide rotor assembly in, rotor core combined with end ring after structural schematic diagram；
Figure 10 is the structural schematic diagram of the rotor core of embodiment two；
Figure 11 is the top view of the first punching group of embodiment two；
Figure 12 is the top view of the second punching group of embodiment two；
Figure 13 be embodiment three provide rotor assembly in, rotor core combined with end ring after top view；
Figure 14 is the B-B cross-sectional view of Figure 13；
Figure 15 is the structural schematic diagram of the rotor core of embodiment three；
Figure 16 is the top view of the second punching group of embodiment three.
Specific embodiment:
The utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment one:
As shown in Figures 1 to 8, provided in this embodiment is a kind of rotor assembly, including rotor core 1, is located at rotor iron
The conducting bar 3 of two end ring 2 of end ring 2 and connection of 1 both ends of the surface of core, the edge of rotor core 1 are provided at circumferentially spaced several conducting bar installations
Slot 14, conducting bar 3 are located at 14 the inside of conducting bar mounting groove, and setting is used to install the axis hole 13 of shaft 4, feature among rotor core 1
Be: rotor core 1 is formed by the first punching of at least two groups group 11 and at least one set of second punching group, 12 stacked spaced apart, the first punching
Piece group 11 includes the first yoke portion 111 and several first teeth portion 112 stretched out outward from the first yoke portion 111, the second punching group 12
Including the second yoke portion 121 and several second teeth portion 122 stretched out outward from the second yoke portion 121, the first yoke portion 111 and the second yoke
Portion 121 is correspondingly arranged, and the first teeth portion 112 is correspondingly arranged with the second teeth portion 122, two neighboring first teeth portion 112, two neighboring
The conducting bar mounting groove 14 is formed between two teeth portion 122, partly or completely the second teeth portion 122 is from side to 13 direction of axis hole
It is recessed heat dissipation groove 15.
The depth H 1 of the slot bottom 151 of heat dissipation groove 15 described above is big compared with the depth H 2 of conducting bar mounting groove 14.
Above-mentioned at 1 both ends of rotor core is the first punching group 11.The first punching of at least two groups group 11 refer to 3 groups or
4 groups or 5 groups；At least one set of second punching group 12 refers to 2 groups or 3 groups or 4 groups.
In the present embodiment, rotor core 1 is formed by 4 group of first 12 stacked spaced apart of the second punching of punching group 11 and 3 group group.Entirely
Second teeth portion 122 in portion is recessed heat dissipation groove 15 from side to 13 direction of axis hole.
It is above-mentioned to be provided with several fan blades 22 on the rotor core 1 wherein end ring 2 of a side end face, several fan blades 22 with
The integrated cast aluminium forming of end ring 2, conducting bar 3.
Shaft 4 described above is mounted in axis hole 13, and fan 5 is equipped in shaft 4, and fan 5 and fan blade 22, which are located at, to be turned
The two sides of sub- iron core 1.
Embodiment two:
As shown in Fig. 9 to Figure 12, provided in this embodiment is rotor assembly class described in a kind of rotor assembly and embodiment one
Seemingly, the difference is that:
Rotor core 1 described above is formed by 4 group of first 12 stacked spaced apart of the second punching of punching group 11 and 3 group group, and first
First yoke portion 111 of punching group 11 is equipped with several first ventilation holes 113, if the second yoke portion 121 of the second punching group 12 is equipped with
Dry the second ventilation hole 123, the first ventilation hole 113 are axially connected to the second ventilation hole 123.
First ventilation hole 113 described above and the second ventilation hole 123 are circumferentially evenly distributed with and are located at axis hole 13 and end ring 2
Between medial surface 21.
In the second punching group 12, heat dissipation groove is recessed from side to 13 direction of axis hole in the second teeth portion of part 122
15, specially every 3 the second teeth portion 122 are equipped with a heat dissipation groove 15.
The slot bottom 151 of above-mentioned heat dissipation groove 15 is connected to by extended segment groove 152 with the second ventilation hole 123.
First ventilation hole 113 is connected to the axial heat dissipation channel 161 of formation with the second ventilation hole 123, recessed with the extended segment
The heat dissipation groove 15 of slot 152 is connected to the radial heat dissipation channel 162 of formation with the second ventilation hole 123, further enhances rotor assembly
Heat dissipation effect.
Extended segment groove 152 described above is arc groove.
Embodiment three:
As shown in figure 13 to figure 16, provided in this embodiment is that rotor assembly is similar with rotor assembly described in embodiment two,
The difference is that:
Rotor core 1 described above is formed by 4 group of first 12 stacked spaced apart of the second punching of punching group 11 and 3 group group,
In two punching groups 12, the second whole teeth portion 122 is recessed heat dissipation groove 15 from side to 13 direction of axis hole.
The slot bottom 151 of part heat dissipation groove 15 is connected to by extended segment groove 152 with the second ventilation hole 123, and specially every 3
There is a heat dissipation groove 15 to be connected to by extended segment groove 152 with the second ventilation hole 123 in a heat dissipation groove 15.
The above-mentioned heat dissipation groove 15 with the extended segment groove 152 is in circumferencial direction uniform layout.
Extended segment groove 152 described above is straight-line groove.
Heat dissipation groove 15 slot bottom 151 by extended segment groove 152 be connected to the second ventilation hole 123 can be formed it is radial
Airflow channel, the first ventilation hole 113 and the second ventilation hole 123 form axial flow channel, make the heat dissipation of entire rotor assembly more
Add uniformly, forms the radiating efficiency more accelerated.
Example IV:
Provided in this embodiment is a kind of motor, including rotor assembly 6, it is characterised in that: the rotor assembly 6 is to implement
Rotor assembly described in example one or embodiment two or embodiment three.
Above embodiments are the better embodiment of the utility model, and however, the embodiments of the present invention are not limited thereto,
Made changes, modifications, substitutions, combinations, simplifications under other any spiritual essence and principles without departing from the utility model are
Equivalent substitute mode, is included within the protection scope of the utility model.
Claims (11)
1. a kind of rotor assembly including rotor core (1), is located at the end ring (2) of rotor core (1) both ends of the surface and connects two end ring
(2) conducting bar (3), the edge of rotor core (1) are provided at circumferentially spaced several conducting bar mounting grooves (14), and conducting bar (3) is located at conducting bar
Inside mounting groove (14), setting is used to install the axis hole (13) of shaft (4) among rotor core (1), it is characterised in that: rotor iron
Core (1) is formed by least two groups the first punching group (11) and at least one set of second punching group (12) stacked spaced apart, the first punching group
(11) several first teeth portion (112) for including the first yoke portion (111) and being stretched out outward from the first yoke portion (111), the second punching
Group (12) includes the second yoke portion (121) and several second teeth portion (122) stretched out outward from the second yoke portion (121), the first yoke
Portion (111) and the second yoke portion (121) are correspondingly arranged, and the first teeth portion (112) is correspondingly arranged with the second teeth portion (122), two neighboring
The conducting bar mounting groove (14) is formed between first teeth portion (112), two neighboring second teeth portion (122), partly or completely
Second teeth portion (122) is recessed heat dissipation groove (15) from side to axis hole (13) direction.
2. a kind of rotor assembly according to claim 1, it is characterised in that: the slot bottom (151) of heat dissipation groove (15)
Depth H 1 it is big compared with the depth H 2 of conducting bar mounting groove (14).
3. a kind of rotor assembly according to claim 1, it is characterised in that: what it is at the rotor core (1) both ends is
One punching group (11).
4. a kind of rotor assembly according to claim 3, it is characterised in that: at least two groups the first punching group (11) refers to 3
Group or 4 groups or 5 groups；At least one set of second punching group (12) refers to 2 groups or 3 groups or 4 groups.
5. a kind of rotor assembly according to claim 1 or 2 or 3 or 4, it is characterised in that: first yoke portion (111) is set
There are several the first ventilation holes (113), the second yoke portion (121) is equipped with several second ventilation holes (123), the first ventilation hole
(113) it is axially connected to the second ventilation hole (123), the slot bottom (151) of part heat dissipation groove (15) passes through extended segment groove (152)
It is connected to the second ventilation hole (123).
6. a kind of rotor assembly according to claim 5, it is characterised in that: first ventilation hole (113) and second is led to
Air holes (123) is circumferentially uniformly distributed and between axis hole (13) and the medial surface (21) of end ring (2).
7. a kind of rotor assembly according to claim 6, it is characterised in that: dissipating with the extended segment groove (152)
Hot groove (15) is in circumferencial direction uniform layout.
8. a kind of rotor assembly according to claim 7, it is characterised in that: the extended segment groove (152) is straight-line groove
Or arc groove.
9. a kind of rotor assembly according to claim 6, it is characterised in that: in the rotor core (1) wherein side
It is provided with several fan blades (22) on the end ring (2) in face, several fan blades (22) and end ring (2), the integrated cast aluminium forming of conducting bar (3).
10. a kind of rotor assembly according to claim 9, it is characterised in that: the shaft (4) is mounted on axis hole (13)
It is interior, it is equipped on shaft (4) fan (5), fan (5) is located at the two sides of rotor core (1) with fan blade (22).
11. a kind of motor, including rotor assembly (6), it is characterised in that: the rotor assembly (6) is to appoint in claims 1 to 10
Rotor assembly described in meaning one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014110.1U CN209419452U (en) | 2019-01-05 | 2019-01-05 | A kind of rotor assembly and its motor of application |
| PCT/CN2019/105346 WO2020140474A1 (en) | 2019-01-05 | 2019-09-11 | Rotor assembly and motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920014110.1U CN209419452U (en) | 2019-01-05 | 2019-01-05 | A kind of rotor assembly and its motor of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209419452U true CN209419452U (en) | 2019-09-20 |
Family
ID=67942616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920014110.1U Active CN209419452U (en) | 2019-01-05 | 2019-01-05 | A kind of rotor assembly and its motor of application |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209419452U (en) |
| WO (1) | WO2020140474A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262364A (en) * | 2020-03-20 | 2020-06-09 | 嵊州市胜大机械有限公司 | Heat dissipation type rotor iron core and preparation process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06217480A (en) * | 1993-01-20 | 1994-08-05 | Hitachi Ltd | Armature |
| JP2008022672A (en) * | 2006-07-14 | 2008-01-31 | Toshiba Corp | Reluctance motor |
| US8910371B2 (en) * | 2011-02-28 | 2014-12-16 | GM Global Technology Operations LLC | Method for fabricating an induction rotor |
| CN106341019B (en) * | 2016-09-26 | 2019-11-22 | 威灵（芜湖）电机制造有限公司 | Self-starting rotor, self-starting magneto and household electrical appliance |
| CN108832788B (en) * | 2018-07-16 | 2024-04-12 | 珠海格力电器股份有限公司 | Rotor core, rotor and motor |
-
2019
- 2019-01-05 CN CN201920014110.1U patent/CN209419452U/en active Active
- 2019-09-11 WO PCT/CN2019/105346 patent/WO2020140474A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262364A (en) * | 2020-03-20 | 2020-06-09 | 嵊州市胜大机械有限公司 | Heat dissipation type rotor iron core and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020140474A1 (en) | 2020-07-09 |
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